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Coordinated operation of gas and electricity systems for flexibility study

Ameli, Hossein, Qadrdan, Meysam ORCID: https://orcid.org/0000-0001-6167-2933 and Strbac, Goran 2020. Coordinated operation of gas and electricity systems for flexibility study. Frontiers in Energy Research 8 , 120. 10.3389/fenrg.2020.00120

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Abstract

The increased interdependencies between electricity and gas systems driven by gas-fired power plants and gas electricity-driven compressors necessitates detailed investigation of such interdependencies, especially in the context of an increased share of renewable energy sources. In this paper, the value of an integrated approach for operating gas and electricity systems is assessed. An outer approximation with equality relaxation (OA/ER) method is used to deal with the optimization class of the mixed-integer non-linear problem of the integrated operation of gas and electricity systems. This method significantly improved the efficiency of the solution algorithm and achieved a nearly 40% reduction in computation time compared to successive linear programming. The value of flexibility technologies, including flexible gas compressors, demand-side response, battery storage, and power-to-gas, is quantified in the operation of integrated gas and electricity systems in GB 2030 energy scenarios for different renewable generation penetration levels. The modeling demonstrates that the flexibility options will enable significant cost savings in the annual operational costs of gas and electricity systems (up to 21%). On the other hand, the analysis carried out indicates that deployment of flexibility technologies appropriately supports the interaction between gas and electricity systems.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: Frontiers Media
ISSN: 2296-598X
Date of First Compliant Deposit: 13 August 2020
Date of Acceptance: 19 May 2020
Last Modified: 05 May 2023 23:23
URI: https://orca.cardiff.ac.uk/id/eprint/134171

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